> On 1/30/07, Mark Hammond <[EMAIL PROTECTED]> wrote: > > > i need to pass an IPersistStream object to a COM function, > > > and i find a type named PyIPersistStream in the manual of pywin32. > > > > > > but i don't know how to generate a PyIPersistStream > object and pass it > > > to the function. > > > anyone could help me? > > > > Gabriel is completely correct - see > ./win32com/demos/ietoolbar.py and > > ./win32com/test/testStreams.py for 2 samples that use this > interface. > > > > thanks to all of you for helping me. > > do i have to implement the IPersistStream by my self? > regarding to IStorage and IStream, i can invoke StgCreateDocfile and > IStorage::CreateStream to generate corresponding objects. > > i thought there must be some way to do that effectively, without > having to do all trivial things by myself.
That is the nature of interfaces - they generally don't come with an implementation. Certainly Python removes the need for many of the trivial things C++ would require you to do, but I can't think of any other details a generic Python implementation could provide. However, if you can come up with an implementation of a base class you believe would be useful for people implementing this interface I'd be happy to look at including it in pywin32. > > i went through all of the samples coming up with pywin32 before i post > this thread. > as to ./win32com/test/testStreams.py, it implements IStream and > IPersist interfaces > by itself (and the implementation is incomplete). > i don't think that's a good way to implement all of the interfaces > that i need, do you? It obviously depends on your caller - but in general I agree, providing a partial implementation of an interface is not what production code should do. But that is the nature of samples - they are intended to give you enough information to create something for your own application and do not profess to be complete implementations of anything. Mark _______________________________________________ Python-win32 mailing list Python-win32@python.org http://mail.python.org/mailman/listinfo/python-win32
